What chemical change occurs when spreadable margarines are made from polyunsaturated oils?

Question

Quizplus · Accepted Answer

Spreadable margarines are made from polyunsaturated oils through a process called hydrogenation. During hydrogenation, hydrogen gas is forced into the oil, causing the double bonds in the unsaturated fatty acids to break and allowing the fatty acids to bond with the added hydrogen atoms. This creates a more solid fat with a higher melting point, which makes it suitable for use as a spreadable margarine. However, this process also creates trans-fatty acids, which have been linked to various health problems. Therefore, it is recommended to consume margarine in moderation and to choose those with lower amounts of trans fats.

What Chemical Change Occurs When Spreadable Margarines Are Made from Polyunsaturated